Oracle Cloud Infrastructure uses 3 prefixes for ap-kulai-2.
Short answer
Oracle Cloud Infrastructure lists these prefixes under “ap-kulai-2”. Oracle Cloud Infrastructure publishes its public ranges per region in public_ip_ranges.json, with tags such as OCI and OSN (Oracle Services Network).
Prefixes
What changed
- 29 Oct 2026
+ 149.118.128.0/19 + 155.181.16.0/20 + 155.181.8.0/21
Allowlist formats
nginx (first 3 prefixes)
allow 149.118.128.0/19; allow 155.181.16.0/20; allow 155.181.8.0/21; deny all;
iptables (first 3 prefixes)
iptables -A INPUT -s 149.118.128.0/19 -j ACCEPT iptables -A INPUT -s 155.181.16.0/20 -j ACCEPT iptables -A INPUT -s 155.181.8.0/21 -j ACCEPT
Generate the full list from the CSV, and refresh it on a schedule: providers add and retire prefixes often.